Sharpening plate insert



FIG. 1 is a top plan view of a sharpening plate insert, according to one embodiment of the invention;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a is front elevational view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a side elevational view thereof, opposite that shown in FIG. 2;

FIG. 6 is a rear elevational view thereof;

FIG. 7 is a top plan view of a sharpening plate insert, according to a second embodiment of the invention;

FIG. 8 is a side elevational view of the second embodiment;

FIG. 9 is a front elevational view of the second embodiment;

FIG. 10 is a bottom plan view of the second embodiment;

FIG. 11 is a side elevational view of the second embodiment, opposite that shown in FIG. 8; and,

FIG. 12 is a rear elevational view of the second embodiment. 

The ornamental design for a sharpening plate insert, as shown and described. 